Sennheiser EMP 2015 User Manual

10 Troubleshooting

Error checklist

Problem

Possible cause

What to do

You hear whistling noise

Microphone volume is adjusted

Reduce the volume with the

too high

microphone volume control

No operation indication

Battery is flat (transmitter)

Replace the battery

No mains connection (EMP 2015)

Check to see if the mains plug is
connected and if the amplifier is
turned on

No RF signal and

Transmitter and/or receiver section

Turn the transmitter and/or

no audio signal

are turned off

receiver section on

Transmission frequency is not the

Set the transmitter and the

same as the receiving frequency

receiver section to the same
frequency
(

“Special adjustments”)

Transmitting antenna is not connected

Connect the antenna

RF signal available but

Transmitter is muted (“MUTE”)

Deactivate the muting function

no audio signal

Receiver section’s squelch threshold

Adjust the squelch treshold to a

is adjusted too high

lower value (

“Adjusting the

squelch threshold”)

Microphone is not connected

Connect the microphone

Speaker’s voice too soft

Microphone volume is adjusted

Increase the microphone

too low

sensitivity on the transmitter
or the microphone volume on
the EMP 2015

Microphone is covered or

Position the microphone at

positioned too far from the mouth

the corner of the mouth

Speaker’s voice too loud

Microphone volume is adjusted

Reduce the volume with the

too high

microphone volume control

Speaker’s voice distorted

Transmitter sensitivity is adjusted

Adjust the sensitivity to a lower

too high

value (

“Adjusting the

sensitivity”)

Receiver section’s AF output level is

Reduce the volume with the

adjusted too high

microphone volume control

Volume of sound reproducing

Volume at the line input is adjusted

Reduce the volume of the

device adjusted too high

too high

audio device with the
corresponding volume control